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7 条记录 (耗时 0.026 秒)

    Low-pressure mercury vapor discharge lamp
    2.
    发明授权
    Low-pressure mercury vapor discharge lamp 失效
    低压汞蒸汽放电灯

    公开(公告)号：US5233268A

    公开(公告)日：1993-08-03

    申请号：US804567

    申请日：1991-12-10

    申请人： Jean J. Heuvelmans ,  Franciscus A. S. Ligthart

    发明人： Jean J. Heuvelmans ,  Franciscus A. S. Ligthart

    IPC分类号： H01J61/067

    CPC分类号： H01J61/0672

    摘要： A low-pressure mercury vapour discharge lamp having a tungsten coil electrode which is supported at either end by a respective current supply wire and which has emitter-coated central turns and, on either side thereof, end turns which are free from emitter. Each of the current supply wire ends with adjoining end turns of the coil is surrounded by an electrically insulating sleeve, such as a glass tube, as a result of which the switching life of the lamp is considerably increased.

    Low-pressure discharge lamp with filament having protective coating
    3.
    发明授权
    Low-pressure discharge lamp with filament having protective coating 失效
    低压放电灯，灯丝具有保护层

    公开(公告)号：US6137225A

    公开(公告)日：2000-10-24

    申请号：US174220

    申请日：1998-10-16

    申请人： Jean J. Heuvelmans ,  Andreas S. G. Geven

    发明人： Jean J. Heuvelmans ,  Andreas S. G. Geven

    IPC分类号： H01J61/067 ,  H01J61/10 ,  H01J61/30 ,  H01J61/32 ,  H01K1/26

    CPC分类号： H01J61/327 ,  H01J61/067 ,  H01J61/325 ,  Y02B20/19

    摘要： At least one of the electrodes (6a) has a coil (60a) of a refractory metal which is electrically connected to current supply conductors (7a, 7a') which extend to outside the discharge vessel. The coil (60a) has a central portion (61a) which is coated with an electron-emitting material and an end portion (62a, 62a) on either side thereof, which end portions are covered with a protecting material which is mainly formed by one or more oxides of calcium and/or magnesium.

    摘要翻译： 电极（6a）中的至少一个具有难熔金属的线圈（60a），该线圈（60a）电连接到延伸到放电容器外部的电流供给导体（7a，7a'）。 线圈（60a）具有涂覆有电子发射材料的中心部分（61a）和其两侧的端部（62a，62a），该端部被主要由一个形成的保护材料覆盖 或更多的钙和/或镁的氧化物。

    Lighting unit, low-pressure mercury discharge lamp, supply unit, and combined packaging
    4.
    发明授权
    Lighting unit, low-pressure mercury discharge lamp, supply unit, and combined packaging 失效
    照明单元，低压汞放电灯，供电单元和组合包装

    公开(公告)号：US5990626A

    公开(公告)日：1999-11-23

    申请号：US23601

    申请日：1998-02-13

    申请人： Jean J. Heuvelmans ,  Abraham L. De Smit

    发明人： Jean J. Heuvelmans ,  Abraham L. De Smit

    IPC分类号： H01J61/067 ,  H01J61/54 ,  H05B41/00 ,  H05B41/298 ,  H05B37/00

    CPC分类号： H05B41/2988

    摘要： A lighting unit according to the invention comprises a supply unit (1) and a low-pressure mercury discharge lamp (2). The low-pressure mercury discharge lamp has a light-transmitting discharge vessel (3) which is provided with a luminescent layer (3) on an inner surface and which encloses in a gastight manner a discharge space (4) which is provided with a filling comprising mercury and one or several rare gases. A first (5a) and a second electrode (5b) are arranged in the discharge space, each comprising a coiling of a metal wire coated with one or several electron-emitting metal oxides. Each electrode is electrically connected to a respective current supply conductor (6a, 6b) which extends to outside the discharge vessel (3). The current supply conductors are electrically connected to the supply unit outside the discharge vessel, the unit ignites the low-pressure mercury discharge lamp in the state upon switching-on. During nominal operation, at least a portion (5a*) of each electrode (5a, 5b) passes an electrode current Iel having an effective value Iel which is at least 1.8 times the minimum electrode current Ip4 required for thermal emission. The lighting unit according to the invention has a long switching life.

    摘要翻译： 根据本发明的照明单元包括供应单元（1）和低压汞放电灯（2）。 低压汞放电灯具有透光放电容器（3），其在内表面上设置有发光层（3），并以气密方式包围放电空间（4），放电空间（4）设置有填充物 包括汞和一种或几种稀有气体。 第一（5a）和第二电极（5b）布置在放电空间中，每个包括涂覆有一个或多个电子发射金属氧化物的金属线的卷绕。 每个电极电连接到延伸到放电容器（3）外部的相应供电导体（6a，6b）。 电流供应导体与放电容器外部的电源单元电连接，该单元在接通状态时点燃低压汞放电灯。 在标称操作期间，每个电极（5a，5b）的至少一部分（5a *）通过具有有效值+ E的电极电流IEL，ovs I + EE el是至少1.8倍所需的最小电极电流Ip4的1.8倍 热发射。 根据本发明的照明单元具有长的开关寿命。

    Low-pressure discharge lamp
    5.
    发明授权
    Low-pressure discharge lamp 失效
    低压放电灯

    公开(公告)号：US5841222A

    公开(公告)日：1998-11-24

    申请号：US757531

    申请日：1996-11-27

    申请人： Jean J. Heuvelmans ,  Hui-Meng Chow

    发明人： Jean J. Heuvelmans ,  Hui-Meng Chow

    IPC分类号： H01J61/067 ,  H01J9/04 ,  H01J61/10 ,  H01J1/14

    CPC分类号： H01J61/10 ,  H01J9/04 ,  H01J61/0672 ,  H01J61/72

    摘要： A low-pressure discharge lamp of the invention is provided with a gas-tight discharge vessel (10) which contains an ionizable filling. Electrodes are arranged inside At least one of the electrodes has a tungsten coil (20.sub.A) which is electrically connected to current supply conductors (30.sub.A, 30.sub.A ') which extend to outside the discharge vessel (10). The coil (20.sub.A) has a central zone (21.sub.A) covered with an electron-emitting material (22.sub.A) and, on either side, boundary zones (23.sub.A, 23.sub.A ') between the central zone (21.sub.A) and respective current supply conductors (30.sub.A, 30.sub.A '). The boundary zones (23.sub.A, 23.sub.A ') having a covering (24.sub.A, 24.sub.A ') of a protective material, comprising a ceramic material having a specific resistance less than 1000 .mu..OMEGA..cm.

    摘要翻译： 本发明的低压放电灯设置有包含可电离填充物的气密放电容器（10）。 电极设置在内部至少一个电极具有电磁连接到延伸到放电容器（10）外部的电流供给导体（30A，30A'）的钨线圈（20A）。 线圈（20A）具有用电子发射材料（22A）覆盖的中心区域（21A），并且在任一侧上，中心区域（21A）和各个供电导体（30A）之间的边界区域（23A，23A'） ，30A'）。 具有保护材料的覆盖物（24A，24A'）的边界区域（23A，23A'）包括比电阻小于1000微米欧米茄的陶瓷材料。